Publications by authors named "Hansong Yan"
Background: Jasminum sambac, a widely recognized ornamental plant prized for its aromatic blossoms, exhibits three flora phenotypes: single-petal ("SP"), double-petal ("DP"), and multi-petal ("MP"). The lack of detailed characterization and comparison of J. sambac mitochondrial genomes (mitogenomes) hinders the exploration of the genetic and structural diversity underlying the varying floral phenotypes in jasmine accessions.
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- * Comparative analysis showed the genomes of transgenic SunUp and its parent Sunset are nearly identical, with key insertions and translocations found on chromosome 5.
- * Research highlighted the importance of specific genes in carotenoid production during domestication and contributed to a better understanding of sex chromosomes and their effects on papaya breeding and improvement efforts.
Background: Bougainvillea is a popular ornamental plant with brilliant color and long flowering periods. It is widely distributed in the tropics and subtropics. The primary ornamental part of the plant is its colorful and unusual bracts, rich in the stable pigment betalain.
View Article and Find Full Text PDFSeparate sexes in dioecious plants display different morphology and physiological characteristics. The differences between the two sexes lie in their highly differentiated floral characteristics and in sex-related phenotype, which is genetically determined and epigenetically modified. In dioecious papaya ( L.
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- Researchers sequenced the genome of the pineapple variety Ananas comosus var. bracteatus CB5, revealing insights into its genetic structure with 29,412 identified genes across 25 chromosomes.
- The study compared multiple pineapple genomes and revealed specific genetic traits related to fiber production, sugar accumulation, and fruit maturation, confirming varied domestication processes across cultivars.
- The findings indicate a blend of sexual and asexual reproduction in the domestication of clonally propagated crops, encouraging further investigation into these processes for other similar species.
Article Synopsis
- High oil and protein content positions tetraploid peanut as a top legume for oil and food, and a newly sequenced high-quality peanut genome of 2.54 Gb reveals critical genetic insights.
- The genome comprises 20 pseudomolecules and over 83,000 protein-coding genes, highlighting functional groups related to seed size, oil content, disease resistance, and nitrogen fixation.
- Analysis of the B subgenome's dominance and its relationship to the A subgenome raises questions about peanut evolution and suggests that multiple domestication events have led to various peanut ecotypes, supporting future research in peanut genetics and improvement.
In the version of this article originally published, the accession codes listed in the data availability section were incorrect and the section was incomplete. The text for this section should have read "The genome assembly and gene annotation have been deposited in the NCBI database under accession number QVOL00000000, BioProject number PRJNA483885 and BioSample number SAMN09753102. The data can also be downloaded from the following link: http://www.
View Article and Find Full Text PDFModern sugarcanes are polyploid interspecific hybrids, combining high sugar content from Saccharum officinarum with hardiness, disease resistance and ratooning of Saccharum spontaneum. Sequencing of a haploid S. spontaneum, AP85-441, facilitated the assembly of 32 pseudo-chromosomes comprising 8 homologous groups of 4 members each, bearing 35,525 genes with alleles defined.
View Article and Find Full Text PDFImproved bioethanol production using CRISPR/Cas9 to disrupt the ADH2 gene in Saccharomyces cerevisiae.
World J Microbiol Biotechnol
October 2018
Article Synopsis
- Bioethanol production faces challenges due to insufficient genetic manipulation systems; the study addresses this by using CRISPR/Cas9 technology to disrupt the alcohol dehydrogenase (ADH) 2 gene in *Saccharomyces cerevisiae*.
- The researchers achieved a high targeting efficiency of 91.4%, resulting in homozygous mutations that were validated through genome resequencing.
- The engineered yeast strains showed a significant improvement in ethanol yield, increasing production by up to 74.7% compared to the native strain, demonstrating the effectiveness of this genome engineering approach.
Non-syndromic cleft lip with palate (NSCLP) is the most serious sub-phenotype of non-syndromic orofacial clefts (NSOFC), which are the most common craniofacial birth defects in humans. Here we conduct a GWAS of NSCLP with multiple independent replications, totalling 7,404 NSOFC cases and 16,059 controls from several ethnicities, to identify new NSCLP risk loci, and explore the genetic heterogeneity between sub-phenotypes of NSOFC. We identify 41 SNPs within 26 loci that achieve genome-wide significance, 14 of which are novel (RAD54B, TMEM19, KRT18, WNT9B, GSC/DICER1, PTCH1, RPS26, OFCC1/TFAP2A, TAF1B, FGF10, MSX1, LINC00640, FGFR1 and SPRY1).
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